Ballmer Thomas T Ed. <br/><br/>
Approaching vagueness 
Ballmer Thomas T Ed.; Pinkal Manfred Ed. 
 - Netherlands  Elsevier Science Publishers          1983 
 - x, 429p  cm. 
<br/><br/><label>ISBN: </label>0444867457 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>Y:3(P), M3